ON YOUR BIKE!

Cy­cling can re­ju­ve­nate your im­mune sys­tem and keep in check the ef­fects of age­ing. A UK study of am­a­teur cy­clists aged 55–79 found it also pre­serves mus­cle mass and strength while main­tain­ing sta­ble lev­els of body fat and choles­terol. Wheel-y good idea!